Every single wild animal has a special environmental niche that it occupies to survive, and wild mountain goats have evolved to occupy some of the weirdest and most hard-to-reach ecological niches out there – steep cliff faces. These goats aren't crazy...

Every single wild animal has a special environmental niche that it occupies to survive, and wild mountain goats have evolved to occupy some of the weirdest and most hard-to-reach ecological niches...